How can I build an hybrid application using winjs framework and Eclipse IDE? From where can I get the required js files for that? Any sample app link would be really helpful.
I don't know if it is possible. But I'm pretty you can use Eclipse to build an app (I use WinJS in Sublime Text a lot for webbased stuff).
The entire source for WinJS is available at GitHub. You have to build it yourself though, which is pretty straight forward.
There are a lot of example on WinJS in the browser on try.buildwinjs.com.